> ## Documentation Index
> Fetch the complete documentation index at: https://docs.occtoo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Filter an endpoint with segments

> Include and exclude segments to control which entries an endpoint returns.

An endpoint based on a card returns every entry of that card. Segments narrow that down, and can be combined: include one set, exclude another.

## Apply filters

<Steps>
  <Step title="Open the endpoint">
    Open the destination, select **Endpoints**, and click the endpoint.
  </Step>

  <Step title="Open the filters">
    Click the segment icon next to the node name in the tree — the root node for the endpoint's own entries, or a relation node to filter the related entries instead.
  </Step>

  <Step title="Include or exclude">
    <img src="https://mintcdn.com/occtoo/1WzHqAa_CdnC2GBq/images/guides/studio/destinations/destination-endpoint-segments.png?fit=max&auto=format&n=1WzHqAa_CdnC2GBq&q=85&s=8a31f99708962932e95c792d0dd91476" alt="The Apply filters dialog" width="1440" height="900" data-path="images/guides/studio/destinations/destination-endpoint-segments.png" />

    Each segment tile carries two controls: **+** includes the segment, **−** excludes it. Click a control again to clear that choice.

    Narrow the list with the **Category** selector, the segment name search, or the **Show only included segments** and **Show only excluded segments** switches.
  </Step>

  <Step title="Save">
    Click **Save**. Filters save immediately against the endpoint rather than waiting for **Save settings** on the tree.
  </Step>
</Steps>

## How include and exclude combine

Include narrows to the union of the included segments; exclude then removes those entries. An entry that is both included and excluded is excluded.

With nothing selected the endpoint returns all entries of its card — the endpoint header reads *Including all \<card> entries*. Once filters exist, the header lists them as **Including** and **Excluding** badges.

<Info>
  Only segments built on the endpoint's own card can be applied. If a segment you expect is missing, check which card it belongs to — see [Find segments](/guides/studio/segments/find-segments).
</Info>

<Warning>
  Segment membership is evaluated continuously. Adding an entry to an included segment makes it appear on the endpoint without republishing — and removing it takes it away just as quietly.
</Warning>